EXERCISE 7.21. A box contains 550 chocolates. If 12% of them were distributed, find the quantity of theremaining chocolates.

A refrigerator box contains 2 milk chocolates and 4 dark chocolates. Two chocolates are drawn at random. Find the probability distribution of the number of milk chocolates. What is the most likely outcome?

Initially a shopkeeper had a chocolates. A customer bought 10% chocolate then another customer bought 20% of the remaining chocolates, after that one more customer purchased 25% of the remaining chocolates. Finally shopkeeper is left with 270 chocolates in his shop. How many chocolates were there initially in his shop ?

A box contains 5 strawberry chocolates, 6 coffee chocolates and 2 pepperint chocolates. Find the probability of each of the following events , if one of the chocolates is picked form the box at random . (i) it is a coffe chocolate . (ii) it is a peppermint chocolate .

A box contains 5 strawberry chocolates, 6 coffee chocolates and 2 peppermint chocolates . Find the probability of each of the pollowing events, if one fothe chocolates is picked from the box at random . It is a coffee chocolate.

A box contains 5 strawberry chocolates, 6 coffee chocolates and 2 peppermint chocolates . Find the probability of each of the pollowing events, if one fothe chocolates is picked from the box at random . it is a peppermint chocolate .

A box contains 5 strawberry chocolates, 6 coffee chocolates and 2 peppermint chocolates . Find the probability of each of the following events, if one of the chocolates is picked from the box at random . It is a coffee chocolate.

A box contains 5 strawberry chocolates, 6 coffee chocolates and 2 peppermint chocolates . Find the probability of each of the following events, if one of the chocolates is picked from the box at random . it is a peppermint chocolate .

Ankur received a box of chocolates containing 50 chocolates as gift. Every time Ankur opened the box, he ate two chocolates. In the evening, Ankur's sister came and wanted to know how many chocolates were left. a. Find the rule for finding the number of chocolates left in the box. b. If 38 chocolates were left in the box, find the number of times Ankur opened the box during the day.

Six boxes A,B,C,D,E and F are placed in a stack one above other. Each contains different number of chocolates viz. 300,240,169,225,330 and 260 . Box A is placed immediately above box C. Three boxes placed between C and the box which contains 300 chocolates. box whcih have 225 chocolates is just above the box which have 300 chocolates. one box placed between box E and the box which have 225 chocolates. F contains 260 chocolates. the box which contain 169 chocolates is placed below box F. three boxes placed between box E and the box which have 169 chocolates. one box is placed between box B and the box which have 240 chocolates. Box C and E together contains how many chocolates ?