Question
Amit and Anaya can complete a task together in 20 days. If
Anaya is 150% more efficient than Amit, how many days will Anaya alone take to finish the task?Solution
ATQ,
Let the efficiency of Amit alone = 4 units/day
Then, efficiency of Anaya alone = 4 + 4 × 1.5 = 10 units/day
So, total work = (4 + 10) × 20 = 280 units
And so, time taken by Anaya alone to complete the work = 280 ÷ 10 = 28 days
What value should come in place of (?) question mark in the given expression.
17 × 15 − 96 ÷ 8 + 6² = ?
Evaluate: 144 ÷ 12 × 6 + 35 − 4²
What will come in the place of question mark (?) in the given expression?
21 × 18 + ? – 19 × 15 = 25 × 24
2916 ÷ 54 = ? + 27
√324 + √484 + 63 = ?2Â
What will come in the place of question mark (?) in the given expression?
{(2/15) + (12/25)} of 375 + 190 = ?% of 375
- What will come in place of the question mark (?) in the following questions?
100−[20+4×5]=? (72 × 52 + 1555 )/(79+60) = 2000 ÷ ?
72 × 2 = ? + 104 – 14
672 ÷ 28 × 24 + 363 – 309 =?