Question
A is twice as efficient as B. Together they can complete
a work in 18 days. In how many days can A alone complete the work?Solution
ATQ, Let B’s 1-day work = x Then A’s 1-day work = 2x Together: 3x = 1/18 x = 1/54 So A’s rate = 2x = 2/54 = 1/27 Hence A alone takes 27 days.
15.63% of 174.99 + √? = 139.98% of 24.98Â
(32.18% of 2399.89 - √624 × 26.25) % of 149.79 = ?
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
? = 685.24 + 1024.97 – 9.992 Â
? = 782.24 + 1243.97 – 19.992 Â
20.132 ÷ 62.5% of 11.16 = ? + 5109.21
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
[34.01 × 18.98 – 12 × √576.03 – 198] ÷ 3.95 = ?
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
?% of 399.99 + 139.99 ÷ 6.99 = 59.99% of 559.99 + 41.09 X 15.99
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