Question
Rakesh can complete a work in 'X + 12' days. While
Shikha can complete the same work in 'X + 27' days. If they can complete the work together in 'X' days, then what is the value of 'X + 27'?Solution
1/(X + 12) + 1/(X + 27) = 1/X (X + 27 + X + 12)/(X + 12)(X + 27) = 1/XX × (2X + 39) = (X + 12)(X + 27) 2X2 + 39X = X2 + 39X + 324 X2 = 324 X = 18 X + 27 = 18 + 27 = 45
[∛(91125/19683 )- ∛(3375/5832 ) ] × ∛(512/9261) = ? - √(484/3969)
150% of 850 ÷ 25 – 25 = ?% of (39312 ÷ 1512)
What will come in the place of question mark (?) in the given expression?
55% of 1600 – (18 × 50) = ? ÷ 16Â
40% of 50 + 50% of ? = 25% of 300 - 10% of 250
`(sqrt(1296)xx42)/(120+200)` = ?
(630 ÷ 35) × 2 + 144 = ? × 2
81% of 2300 – 34% of 550 = ?
What will come in the place of question mark (?) in the given expression?
133 ÷ 19 X √576 + ? ÷ 2 = 32 X 7.5Simplify the following expression:
84 - [21 - {14 - (25 - 16 + 8) }] ÷ 3 X 6
What value should come in the place of (?) in the following questions?
?2 = 240 * √25 + 38 * 5 - 94
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