Question
 P can do a work in 20 days, Q in 30 days. They work
together, but P leaves 5 days before completion. Find total time.Solution
ATQ, Let total time be T. (T-5)/20 + T/30 = 1 3(T-5) + 2T = 60 5T = 75 -> T = 15
More Time and work Questions
(72 × 52 + 1555 )/(79+60) = 2000 ÷ ?
125 + 64% of 250 = 150 + ?
- Find the simplified value of the given expression:
9 of 6 ÷ 3 × 6² + √64 – 15 17.6% of 250 + √? = 70% of 90
Ravi is 12 years younger than Surya. Ravi's age is 40% of the sum of his and Surya's age. What will be Surya's age 9 years hence?Â
Find the simplified value of the following expression:
62 + 122 × 5 - {272 + 162 - 422}
690 ÷ (75% of 460) = ? ÷ (50% of 160)
What will come in the place of question mark (?) in the given expression?
642 - 362 = ? X √1225
18% of 200 - 16% of 150 = ?
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