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1. 54 is to be divided into two parts such that the sum of 10 times the first and 22 times the second is 780. The bigger part is :
- A. 24
- B. 24
- C. 24
- D. 24
Answer: Option B
Explanation:
x + y = 54
Or, x = (54 - y)
2n condition :
10x + 22y = 780
5x + 11y = 390
5 ( 54 - y) + 11y = 390
270 - 5y + 11y = 390
6y = 120
y = 20
x = ( 54 - 20) = 34
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