Question
Average age of a class of 28 students is 10
years. Average age of the class is increased by 12 months if the age of the teacher is included. Find the age of the teacher.Solution
A spherical metallic shell with 6 cm external radius weighs 6688 g. What is the thickness of the shell if the density of metal is 10.5 g per cm3
A university has Y students. 40% study science, 35% study arts, and the rest study commerce. In an exam, 25% of science students, 20% of arts students, ...
If f(g(x))= x, where f and g are inverses of each other and f’(x) = 1/(1+x ² ), then g’(x) equals:
88.88% of 539.712 + 14.28% of 350.12 = ? + 20.18 * 9.91
In a 1500-metre race, Arjun beats Bishnu by 600 metres, and Bishnu beats Chintu by 700 metres. How far will Arjun beat Chintu by ...
'P' sold an item at a profit of 40%. If the cost price of the item had been Rs. 150 less and its selling price had been Rs. 30 mo...
If (3/7) of 'x' is greater than (2/11) of 'x' by 38, then determine the value of 'x'.
P and Q together can complete a certain task in 45 days. P can finish the task alone in 75 days. How many days will it take for Q...
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