Question
P and Q can complete a work in 36 days and 54 days,
respectively. P, Q and R together can complete the work in 18 days. If R get a total wage of Rs. 5940 to complete the work alone, then find the per day wage of R.Solution
Let the total work be LCM of (36, 54 and 18) = 108 units Number of units of work done by P alone in one day = 108/36 = 3 units Number of units of work done by Q alone in one day = 108/54 = 2 units Number of units of work done by P, Q and R together in one day = 108/18 = 6 units Number of units of work done by R alone in one day = 6 – 3 – 2 = 1 unit So, time taken by R alone to complete the work = 108/1 = 108 days So, per day wage of R = 5940/108 = Rs. 55
√3600% of 150 + 3/5 of 360 - ? = 210
52% of 36% of 810 = 72% of 18% of ?
315 ÷ 9 + 23 × 3+ 22 = ?× √441
(560 ÷ 32) × (720 ÷ 48) = ?
What value should come in the place of (?) in the following questions?
30% of 160 – 25% of 240 + 43 = ?
√0.49 + √6.25 + √1.44 + √1.21 =? % of 125
31% of 1900 - ? = 73
4.5 times 5/0.9× 35% of 240 =?
√? = 80% of 720 - 22% of 2500
{(81% of 800 + 28 × 4) – 27 × ?} = 11 × 20
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