Question
'A' and 'B' alone can complete a work in 10 days and 15
days, respectively. If they worked together and total wage received by them to complete the work is Rs. 600, then find the wage received by 'A'.Solution
Let total work = 30 units {LCM of 10 and 15} Efficiency of 'A' = 3 units per day Efficiency of 'B' = 2 units per day Since, they completed the whole work together therefore ratio of wage received by them will be same as the ratio of their efficiencies. So, Required wage received by 'A' = {3/(3 + 2)} X 600 = Rs. 360
- What will come in place of (?) in the given expression.
(25% of 320) + (15% of 240) = ? The speed of the stream is 10 km/h. Boat ‘A’ covers 110 km distance against the stream in 11 hours and boat ‘B’ covers 65 km distance against th...
[(1245 ÷ 9) ÷ 12] × 540 = ?2 – 175
25639 – 5252 – 3232 = ?
Find the value of ‘a’ in the following expression:
12 × a × 24 ÷ 8 + 72 – 46 = 170
- What will come in the place of question mark (?) in the given expression?
(198/13) X (52/11) - ? ÷ 5 = 13 + 68 ÷ 4 What will come in the place of question mark (?) in the given expression?
? = (40% of 80% of 6400) ÷ 64
√361 ÷ (21/23) × 84 = ?
96% of 4500 – 34% of 650 = ?
25% of 60 × 15% of 120 = 30% of (?)
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