Question
Rs. 13000 invested for 2 years in a scheme offering
compound interest (compounded annually) of 15% p.a. gives an interest that is Rs. 10 less than the interest received on investing Rs. Y for a year at simple interest of 10% p.a.. Find the value of ‘Y’.Solution
Interest returned on investing Rs. 13000 = 13000(1 + 15/100)2 – 13000 = 13000(115/100)2 – 13000 = 13000(23/20)2 – 13000 = 13000{232/202)- 1} = 13000{529/400)- 1} = 13000(529 - 400)/400 = Rs. 4192.5 So, interest returned on investing Rs. Y for 1 year at simple interest of 10% p.a. = 4192.5 + 10 = Rs. 4202.5 Or, Y × (10/100) = 4202.5 Or, Y = 4202.5 × (100/10) Or, Y = 42025
What is the probability that the cards drawn contains 1 red card, 1 purple card and 1 yellow card?
In a box there are 6 red, 12 blue, and 18 yellow cards. One card is picked up randomly. What is the probability that it is neither red nor yellow?
- A money bag has eight 50 paise coins, seven Rs. 2 coins, and ten Rs. 10 coins. If one coin falls out and is lost, what is the probability that the lost coi...
A bag contains 8 Green and 10 Red balls. One ball is drawn at random. What is the probability that the ball drawn is Red?
A bag contains 10 white balls, 5 black balls and 5 red balls. Two balls are drawn at random. What is the probability that at least one of them is red?
A is trying to break a bulb by throwing balls at it. If he hits the bulb 4 times in every 11 throws and bulb breaks 3 times out of 7 hits, then find the...
A bag contains 16 black and 18 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
...A bag contains 7 (one rupee coins), 4 (two rupee coin) and 5 (ten rupee coin). Find the probability that 3 coins drawn at random are either (two rupee c...
- A bag contains six green balls, four red balls and two yellow balls. Two balls are drawn at random, what is the probability that both are of the same colou...
A game consists of tossing three coins once and then rolling two dice. Find the probability of getting all heads in the coin toss and a sum equal to 9 o...
