English, asked by sonam5665, 11 months ago

21/2 tonnes of sand are to be shared between a number of Builders one of them received 4/7 of the total and the remaining sand is shared by the 3 builders how much does the fourth builder receive and how much sand does each of the other three builders receive? ​

Answers

Answered by empathictruro
25

Answer:

Amount of sand received by the fourth builder= 6 tonnes of sand

Amount of sand received by each of the three builders= 1÷2 tonnes of sand

Explanation:

The number of tonnes of sand received by the fourth builder is (4÷7)×total tonnes of the sand

Amount of sand received by the fourth builder = (4÷7)×(21÷2)

                                                                              =6 tonnes

Amount of tonnes of sand remaining= Total sand- sand given to the fourth builder

                                                             =(21÷2)-6

                                                            = 3÷2

Amount of sand received by each of the three builders=(3÷2)×(1÷3) tonnes of sand

Answered by shashankvky
37

Answer:

Share of 3 builders = 1.5 tonnes each

Share of 4th builders = 4.5 tonnes

Explanation:

Total amount of sand = 21/2 = 10.5 tonnes

Total number of builders = 4

Share of 4th builder = 4/7th of total sand

                                 = 4/7 x 10.5

                                  = 6 tonnes

Remaining sand = 10.5 - 6 = 4.5 tonnes

Remaining sand has to be shared between three builders, hence share of each builder = 4.5/3 = 1.5 tonnes

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