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When light Enters One medium to another medium. At that time frequency remains Constant. But wavelength and velocity changed.
A person sells two items, X and Y. The marked prices of X and Y are 25% and 40% higher than their cost prices, respectively. After a 10% discount on bot...
159, 303, 499, 755, 1079, ?
A retailer buys two items at the same cost price. He sells one at a 25% profit and the other at a 20% loss. If the overall profit is rupees 15, find the...
A hemispherical bowl of inner radius 10 cm is filled with water. If the water is poured into a cylindrical container with a radius of 5 cm, what will be...
A bag contains coins of ₹1, ₹2, and ₹5 denominations in the ratio 3:2:1. If the total amount in the bag is ₹240, find the number of ₹2 coins.
Find the value of 24 - 3
A circle is inscribed in a triangle ABC with sides 12 cm, 16 cm, and 20 cm. What is the radius of the circle?
Two pipes can fill a tank in 10 hours and 12 hours, respectively, while a third pipe can empty it in 20 hours. If all the three pipes are opened simulta...
A father is currently 3 times as old as his son. In 10 years, the father’s age will be twice that of his son. What are their present ages?
From a point located x meters away from the base of a tree, the angle of elevation to the top of the tree is 60 ∘ . If the tree is 54 mete...