21-12-2021 Answers

 1. Seven persons can clean 7 classrooms-> 7

2. A takes 2 days to complete one-third-> 5 days

3. The number of digits in the product 5^72-> 75

4. At the time of birth of twins, the average age-> 58

5. The ratio of petrol and kerosine in the container-> 30 litres

6. The average price of all fruits is Rs.100. The orange-> 62

7. The average age of A,B,C,D,E is 40 years-> 46

8. In what ratio should freely available-> 1:2

9. A debtor can pay 87 paisa in the rupee-> Rs.600

10. The sum of all the factors of 45000-> None of these

11. A group of workers can do a piece-> 10

12. The average age of a teacher and 18-> 44

13. What is the remainder when 7^84 is-> 1

14. Find the remainder when 9^999-> 1

15. A courier clerk weighs5 different packets-> 550 grams

16. What is the remainder when 1719-> 16

17. There are four numbers whose product-> 61.75

18. Find the remainder when 11^8 is divided-> 2

19. If 20 men can build a wall 120 feet-> 90 feet

20. What is the remainder when 1234556-> 18

21. A shopkeeper mixed 40kg of refined oil-> Cannot be determined

22. The remainder obtained when a prime-> 1 or 5

23. A farmer divides his herd of x cows among-> 140

24. From a container of milk, which contains 200 liters-> 81.92 litres

25. With four fifths of the tank full, a vehicle-> 5 kms

26. How many natural numbers upto 1155 are-> 330

27. A's money: B's money-> Rs.750

28. A is twice as good as workman-> 42 days

29. The ratio of number of girls to the number-> 18kg

30. The last two digits of 99891^5423-> 71

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