Question
Kabir can build a fence in 16 days. Working together, Kabir
and Arjun can finish it in 8 days. How long will Arjun take to build the fence alone?Solution
ATQ,
Let the total work be 16 units {LCM (16 and 8)}
Efficiency of Kabir = (16/16) = 1 unit/day
Efficiency of Kabir and Arjun together = (16/8) = 2 units/day
Efficiency of Arjun = 2 - 1 = 1 unit/day
Time required by Arjun to complete the work alone = (16/1) = 16 days
What should come in place of (?) question mark in the given expression.
(576 ÷ 12) + (3³ × 4) = ?
- 60% of 180 – 30% of 60 = 15% of ?
What will come in the place of question mark (?) in the given expression?
(252 + 198) ÷ ? + 126 ÷ 3 = 144 ÷ 2
- Find the simplified value of following expression:
0.998 + 0.882 + 0.12 √529 + √64 + 92 = ?
What will come in the place of question mark (?) in the given expression?
? = (20 × 62 – 342 )
What will come in the place of question mark (?) in the given expression?
(√1024 + √324)% of 780 = ?% of 260
15848 ÷ 4 – 793 × 6 + 3628 = 3 × ?
{(5/8) + (4/5)} × (?/19) = 33
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