20 boys do one fourth of work in 25 days. How many more boys will be required to complete the remaining work in 50 days?
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Two numbers are in the ratio 2:5 and their HCF is 18. Their LCM is
If a - b = -1 and ab = 6, then what is the value of a3- b3?
If tanθ = 43, then the value of 3sinθ+2cosθ3sinθ-2cosθ ?
What is the value of Sin 60° + (1/2)Cosec 45°?
The value of (0.3)2/100=?
XYZ is a right angled triangle and ∠Y = 90°. If XY = 2.5 cm and YZ = 6 cm then the circumradius of ∆XYZ is
A racing car going at an average speed of 108 km/hr takes 15 minutes to complete a lap on a racing track. By how much should it increase its speed (inkm/hr) to complete the lap in 12 minutes?
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