Question
A box contains eight Rs. 1 coins, ten Rs. 2 coins, and two
Rs. 5 coins. One coin falls out and gets lost. What is the probability that the lost coin is not a Rs. 5 coin?Solution
Number of Rs. 5 coins = 2
Total number of coins = 8 + 10 + 2 = 20
So, the required probability = 1 - 2/20 = 18/20 = 9/10
564.932 + 849.029 – 425.08 = 612.095 + ?
999.99 + 99.99 + 99= ?
A sum of ₹60,000 is invested at a compound interest rate of 'x%' per annum, compounded annually, and grows to ₹75,264 in 2 ye...
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
³√? × 33.97 + 59.99 × 28.9 – 48.98 × 21.42 = 1085.344
1279.98 ÷ 40.48 × 10.12 = ? × 2.16
(124.901) × (11.93) + 219.95 = ? + 114.891 × 13.90
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
