1726 . How many tiles each a square tile of 2 inch sides are needed to cover a rectangle floor of 4 feet long and 6 feet wide?

A. 24
B. 128
C. 96
D. 864

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Answer: Option D

Explanation:

Measurements of the floor are 4 feet or 48 inches and 6 feet or 72 inches.

So, area of the floor = 48 x 72 = 3456 sq in

Area of each tiles = 2 x 2 = 4 sq in

Number of tiles needed = 3456/4 = 864

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1727 . How many tiles each of 1 square foot are necessary to form a 1 foot border around the inside of a 24 feet by 14 feet room?

A. 36
B. 37
C. 72
D. 74
E. None of these

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Answer: Option C

Explanation:

Area of the total room = 24 x 14 = 336 sq ft

Measurements of the room without the border will be (24 - 1x2) = 22 ft by (14 - 1x2) = 12 ft.

Therefore, Area of the room without the border = 22 x 12 = 264 sq ft

So, the area of the border = 336 - 264 = 72 sq ft.

Then, the number of tiles required = 72/1 = 72.

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1728 . How many times are the hands of a clock at right angle in a day?

A. 22
B. 24
C. 44
D. 48
E. None of these

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Answer: Option C

Explanation:

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সাধারণ বীমা কর্পোরেশন || সহকারী ব্যবস্থাপক (08-11-2024) || 2024

A. 20
B. 21
C. 22
D. 24

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Answer: Option C

Explanation:

In 24 hours, the hands coincide or are in opposite direction 44 times a day

So, in 12 hours=44/2=22 times

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1730 . How many times does the digit '4' come to write numbers from 1 to 100?

A. 10
B. 11
C. 19
D. 20
E. None of these

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Answer: Option C

Explanation:

The digit four appears once in each of the following: 4, 14, 24, 34, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 54, 64, 74, 84 and 94

4 comes 1 to 100 is 20 times

So, 4 comes 10 to 100 is (20 - 1) = 19 times

ans: for a total of 19 times.

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পল্লী কর্ম সহায়ক ফাউন্ডেশন সহকারী ব্যবস্থাপক ০২. ০৮.২০১৯

A. 10
B. 11
C. 15
D. 19

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Answer: Option D

Explanation:

14, 24, 34, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 54, 64, 74, 84, 94 = > 19 times. ans.

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1732 . How many times in a day, are the hands of a cock in straight line but opposite in direction ?

A. 22
B. 24
C. 48
D. 20

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Answer: Option A

Explanation:

Its a general knowledge type question. Though one can calculate it by thinking, its 22 tims.

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Bangladesh Bank - Officer(Cash) - 2016

A. 22
B. 24
C. 48
D. 44

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Answer: Option A

Explanation:

In 24 hours, the hands coincide or are in opposite direction 44 times a day

So, in 12 hours=44/2=22 times

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1734 . How many times in a day, the hands of a clock are straight?

A. 22
B. 24
C. 48
D. 48

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Answer: Option A

Explanation:

The hands of a clock point in opposite directions (in the same straight line) 11 times in every 12 hours (because between 5 and 7 they point in opposite directions at 6 o'clock only).
So, in a day, the hands point in the opposite directions 22 times.

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1735 . How many ways the letters of the word 'BANKS' can be arranged?

A. 24
B. 120
C. 90
D. 30

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Answer: Option B

Explanation:

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সমন্বিত ৭ ব্যাংক || অফিসার (ক্যাশ) (24-05-2024)

A. 72
B. 144
C. 240
D. None of these

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Answer: Option D

Explanation:

Wide = 300 cm = 300/100 = 3 meter
Length = 600/100 cm = 6 meter
So, preimeter = 2(wide + length) = 2(3 + 6) = 18 m
So,18 meters will be needed to enclose a rectangular field .

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Bangladesh Bank - Assistant Director - 2001

A. 200
B. 210
C. 220
D. None of these

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Answer: Option D

Explanation:

6 month interest rate = 10/2 % = 1/20
Interest = C - P
= p(1 + r)^n - p
= 2000(1 + 1/20)^2 - 2000
= 2000*21/20*21/20 - 2000
= 2205 - 2000
= 205

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Bangladesh Bank - Assistant Director - 2001

A. Tk. 160
B. Tk. 163.20
C. Tk. 249.73
D. Tk. 332.80

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Answer: Option B

Explanation:

Here, Principal, P = 2000 TK, Rate of interest, r = 8%, Repetition of time period(1 year), t = 1 & Interest compounded (n = 2) times within a year(every six months).

Compound interest, I = P(1 + r/n)nt - P = 2000(1 + (8/100)/2)(2x1) - 2000 = 2000(208/200)2 - 2000 = 163.2 TK

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1739 . How much interest will Tk.1000 earn in one year at an annual interest rate of 8% if interest rate is compounded every 6 months?

A. 82.4
B. 82.0
C. 81.6
D. 80.6

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Answer: Option C

Explanation:

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1740 . How much interest will Tk.2000 earn at an annul rate of 8% in one year if the interest is compounded every six months?

A. Tk.160
B. Tk.163.20
C. Tk.249.73
D. Tk.332.80

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Answer: Option B

Explanation:

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1726 . How many tiles each a square tile of 2 inch sides are needed to cover a rectangle floor of 4 feet long and 6 feet wide?

1727 . How many tiles each of 1 square foot are necessary to form a 1 foot border around the inside of a 24 feet by 14 feet room?

1728 . How many times are the hands of a clock at right angle in a day?

1729 . How many times do the hands of a clock coincide in a day?

1730 . How many times does the digit '4' come to write numbers from 1 to 100?

1731 . How many times does the digit '4' come write numbers form 10 to 100 ?

1732 . How many times in a day, are the hands of a cock in straight line but opposite in direction ?

1733 . How many times in a day, the hands of a clock are straight ?

1734 . How many times in a day, the hands of a clock are straight?

1735 . How many ways the letters of the word 'BANKS' can be arranged?

1736 . How much fence ( in meter ) will be needed to enclose a rectangular field that is 600 cm long and 300 cm wide ?

1737 . How much interest will TK. 2000 earn at an annual rate of 10% in one year if the interest is compounded every 6 months ?

1738 . How much interest will Tk. 2000 earn in one year at an annual rate of 8% if the interest is compounded every six months?

1739 . How much interest will Tk.1000 earn in one year at an annual interest rate of 8% if interest rate is compounded every 6 months?

1740 . How much interest will Tk.2000 earn at an annul rate of 8% in one year if the interest is compounded every six months?

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