Question
A bag contains cards which are numbered from 2 to 90. A
card is drawn at random from the bag. Find the probability that the card number is a perfect square.Solution
Perfect square number between 2 and 90- 4,9,16,25,36,49,64,81 So now probability=8/89
Calculate: 0.75 × 0.4 + 2.5 ÷ 0.5 − 0.36
A shop sells 2.5 kg sugar at ₹42.60 per kg and 1.75 kg tea at ₹248.40 per kg. Find the total bill.
Numerator of a fraction is 4 less than the denominator. If 6 and 7 are added to numerator and denominator of a fraction respectively, then fraction beco...
A rope is 20 m long. A person uses 3/5 of it and then cuts off 1/4 of the remaining part. How many metres of rope are left?
A man distributed some candies to his three sons A, B and C. A, being the eldest got two times the number of candies that C got while A and B together...
Simplify: 2/3 of 4½ − 3/5 of 2¼
Express 0.125 as a fraction in simplest form.
Evaluate 3.2 × 2.5 + 1.5 × 1.2 and express the answer as a fraction.