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4 years ago, sum of ages of husband, wife and child = 26 x 3 = 78 years Present sum of ages of husband, wife and child = 78 + (4 x 3) = 78 + 12 = 90 years 5 years ago, Sum of the ages of wife and child = 2 × 25 = 50 years Present Sum of the ages of wife and child = 50 + (5 × 2) = 50 + 10 = 60 years Now, Husband's present age = Present sum of ages of husband, wife and child - Present Sum of the ages of wife and child Husband’s present age ⇒ (90 - 60) = 30 years
P earns Rs. 12,000 per month. He spends 40% of his income on rent, 25% of the remaining amount on food, and saves the rest. Q sav...
A group of 30 students has an average score of 60 in an exam. If 5 more students join the group and their average score is 70, find the new average scor...
The sum of the interior angles of a polygon with n sides is 1800°. Find the value of n.
The ratio of two numbers is 4:8 and their LCM is 64. The numbers are:
If a point P(x, y) is equidistant from A(6, 2) and B(-2, 6), find the equation representing this condition.
A person travels from city A to city B at 60 km/h and returns at 40 km/h. If the total time taken for the round trip is 6 hours, find the distance betwe...
A store originally sells a jacket for ₹2,500. During a sale, the store offers a discount of 20% on the jacket. After the sale, the store increases the...
A hexagonal prism has a base edge of 6 cm and a height of 10 cm. Find its volume and lateral surface area.
The height of a solid cylinder is 30 cm and the diameter of its base is 10 cm. Two identical conical holes each of radius 5 cm and height 12 cm are dril...
Compute P(A∩B), if P(B) = 0.8 and P(AǀB) = 0.35