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Let total amount of work be 450 units (LCM of 18 and 25). Efficiency of ‘A’ = 450/18 = 25 units/day Efficiency of ‘B’ = 450/25 = 18 units/day Amount of work done by ‘A’ and ‘B’ together in 9 days = (25 + 18) × 9 = 387 units Time taken by B to complete remaining work = {(450 – 387)/18} = 3.5 days
In a triangle ABC, angle A = 45 degrees, angle B = 60 degrees, and side a = 10 units. Find the length of side b.
38.182 - ? - 27.122 = 25.892
‘D’ and ‘E’ can complete a project in 40 days, while ‘E’ and ‘F’ can complete it in 60 days. ‘D’ and ‘E’ worked together on it f...
Alloy A contains iron and copper in ratio 4:5. Alloy B contains iron and copper in ratio 3: 4. If 63kg of alloy A and 56 kg of alloy B are mixed, then w...
A, B and C alone can complete a work in 20, 30 and 25 days respectively. All of them started working together but after 4 days from start A left the job...
Find the smallest number which when successively divided by 4, 7 and 5 will give the remainder 2, 1, 3.
A train overtakes a bus traveling at a speed of 5 m/s in 8 seconds. If the length of the train is 160 meters, determine the speed...
If a + b + c = 0, then what is the value of a3Â + b3Â + c3Â - 3abc?
Cost of two types of pulses is Rs.18 and Rs, 23 per kg, respectively. If both the pulses are mixed together in the ratio 2:3, then what should be the pr...
(0.25)Â -1.5Â = ?