Question
P, Q and R together can complete a work in 12 days. All of
them worked together for 6 days and then P left. How much time will Q and R together take to complete the remaining work? I: If P completes a work in X number of days, then Q and R together complete the work in X number of days. II: After leaving the work, P completed another work in 10 days.Solution
From statement I, it is clear that had P not left the work, the remaining work would have been completed in 6 days. Now since, P’s efficiency is equal to (Q + R)’s efficiency, now the work will completed in 12 days. Statement II is not related to the question.
5121.3 × 641.8 ÷ 80.5 = 8?
1500 ÷ 15 + 1000 ÷ √100 + ? = 250 * 3
115 ÷ 23 + 12 × 6 = ? + 16 - 35
Simplify the given expression:
[(2.3)3 + (15.9) ³ + (3.7) ³ – 3 × 2.3 × 15.9 x 3.7)] / [(2.3) ² + (15.9) ² + (3.7) ² – 2.3 ...
(15 × 16) + 242= ? × 16
3/7 of 686 + 133(1/3)% of 33 – 69 =?
Simplify the given expression:-
[192 ÷ 6 × 5] ÷ (? + 3) = 20
25% of 440 + 88 X (1/2)2 - 28 = 8 X ?
Solve.
15.73 +13.25 +16.73 – 28.71 = 5 ×?