Question
In a shop, shirts are usually sold at 50% above the cost
price. During a sale, the shopkeeper offers a discount of 20% off the usual selling price. If he manages to sell 324 shirts for Rs.19440. Then his cost price per shirt isSolution
Let the C.P. of 1 shirt = Rs. 100 M.P. of 1 Shirt = Rs. 150 S.P of 1 shirt = 80% of 150 = Rs. 120 Actual S.P of 1 shirt = 19440/324= Rs. 60 Now, 120 ------------ 60 100 ----------- (60/120) × 100 = Rs. 50
- A coin is tossed 2 times. ‘A’ wins the game if at least one tail appears. Otherwise, ‘B’ wins. What is the probability that ‘A’ wins?
A bag contains 5 red balls, 4 black balls and 8 white balls. Two balls are drawn simultaneously. Find the probability that both the balls are of same c...
A box contains only three colors of balls- red, green and blue. What is the minimum number of balls that should be picked from the box to ensure that at...
A bag contains (K - 2) red balls, 8 black balls, and 14 blue balls. If two balls are drawn randomly, the probability that both are black is 2/27. Calcul...
A basket contains 3 pink, 4 blue and 5 yellow wools. If three wools are picked at random, what is the probability that either all are blue or either all...
Tokens numbered 1 to 350 are in a bag. What is the probability that the Token drawn has a number which is a multiple of 6 or 7?
- Two balls are drawn randomly without replacement from a bag containing 7 red balls and 5 green balls. What is the probability that both balls are green?
A game consists of tossing three coins once and then rolling two dice. Find the probability of getting no heads in the coin toss and a sum equal to 4 on...
10 rotten bananas are accidentally mixed with 140 good ones. It is not possible to just look at a banana and tell whether or not it is rotten. One banan...
If two socks are chosen at random, what is the probability that either all are green or all are black socks?
Relevant for Exams:
