Question
Komal and Seema individually can complete a task in
‘5a’ hours and ‘7a’ hours respectively. If they together can complete (4/5)th of the work in 7 hours, then find the value of ‘a’.Solution
According to the question, => 7 x [(1/5a) + (1/7a)] = 4/5 => 7 x (12/35a) = 4/5 => a = 3
More Time and work Questions
(√1296 – 12) × 5 = ? + 40
Simplify: 0.004 × 0.5
(21 X 5) + ? = (480 - 120) ÷ 3
8 × (25 % of 720) – 50 % of 135 % of 840 = ?
135÷ 15 x 19 + 14807 = ? + √3249 - √9604
5/13 × 104 + 1(2/9) × 198 = 133 + ?
What will come in the place of question mark (?) in the given expression?
√(? - 212) - 84 = 81 - 13 X 9
(64/25)? × (125/512)?-1 = 5/8
540 ÷ 6 + 25 % of 120 + ? * 8 = 72 * √9
- What will come in place of the question mark (?) in the following questions?
75% of 240 + 30 = ?
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