Question
‘Amit’ is 1.5 times as efficient as ‘Bhuvan’, who
is 1/3 as efficient as ‘Chirag’. If Amit and Chirag together complete a work in 18 days, how long will Bhuvan and Dev take to do it if their efficiency ratio is 2:1 respectively?Solution
ATQ,
Let efficiency of Chirag = 3x units/day
Efficiency of Bhuvan = 3x / 3 = x units/day
Efficiency of Amit = 1.5x units/day
Efficiency of Dev = (x / 2) × 1 = 0.5x units/day
Total work = (Amit + Chirag) × 18 = (1.5x + 3x) × 18 = 81x units
Combined efficiency of Bhuvan and Dev = x + 0.5x = 1.5x units/day
Time = 81x / 1.5x = 54 days
480 ÷ 10 + 18 % of 160 + ? * 9 = 60 * √36
`(sqrt(960.87)xx9.932+sqrt(629.998)xx26.385)/(sqrt(1028.902)xx4.977)=?`
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.)...
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.)...
(2100.23 ÷ 34.98) + (864.32 ÷ 23.9) + 1854.11 =?
- 29.98% of 249.897 = ?² – (4.98)²
What is the area (in cm²) of a square inscribed in a circle with a radius of 10√2 cm?
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.)...
What approximate value will replace the question mark (?) in the following?
29.99...
(363.89% of 224.98 – 319.86% of 134.94) ÷ ? = √(134.88 ÷ 15.25)
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