EXERCISE 7A (OBJECTIVE TYPE QUESTIONS IN 41 45 SOLUTION )

41.       The sum, of two numbers is 40 and their product is 375. What will be sum of their reciprocals?

a)      1/40

b)      8/75

c)       75/4

d)      75/8

42.       The sum of two positive integers multiplied by the bigger number is 204, and the difference multiplied by the smaller umber is 35. The numbers are:

a)      12 ,5

b)      13,4

c)       14,3

d)      24,10

43.       If the sum and difference of two numbers are 20 and 8 respectively, then the difference of their squares is:

a)      12

b)      28

c)       160

d)      180

44.       The product of two numbers is 120 and the sum of their squares is 289. The sum of the numbers is :

a)      20

b)      28

c)       160

d)      180

45.       The product of two numbers is 45 an the sum of their squares is 106. The numbers are:

a)      3 and 5

b)      5 an 9

c)       5 an 19

d)      45 an 1

ANSWERS 

EXERCISE 7A (OBJECTIVE TYPE QUESTIONS IN 36 40 SOLUTION )

36.       The difference between two integers is 5. Their product is 500. Find the numbers.

a)      15,20

b)      20,25

c)       30,25

d)      21,26

37.       Two numbers differ by 5. If their product is 336, then the sum of the two numbers is

a)      21

b)      28

c)       37

d)      51

38.       Two different natural numbers are such that their product less than their sum . One of the numbers must be:

a)      1

b)      2

c)       3

d)      None of these

39.       The product of two numbers is 9375 and the quotient, when the larger one is divided by the smaller, is 15. The sum of the numbers is :

a)      380

b)      395

c)       400

d)      425

40.       The difference between two numbers is 1365. When the larger number is divided by the smaller one, the quotient is 6 and the remainder is 15. The smaller number is:

a)      240

b)      270

c)       295

d)      360

ANSWERS