1)

The average weight of A, B and C is 65 kg. If the average weight of A and B is 63.5 kg, and the average weight of A and C is 67.5 kg, then the weight of A (in kg) is:

SSC CPO 2020

A)

67

B)

65

C)

68

D)

60

2)

The average of twelve numbers is 39. The average of the last five numbers is 35, and that of the first four numbers is 40. The fifth number is 6 less than the sixth number and 5 more than the seventh number. The average of the fifth and sixth numbers is:

SSC CPO 2020

A)

44

B)

47

C)

50

D)

39

3)

The average weight of a group of 3 people A, B and C is 70 kg. When D joins this group, the average becomes 60 kg, One man E, whose weight is 5 kg more than that of D, replaces A and the average weight of B, C, D, and E now becomes 59 kg. A's weight (in kg) is:

SSC CPO 2020

A)

40

B)

50

C)

59

D)

39

4)

If A is \(\frac 1 6\) of C, and B is twice of A, and the average of A, B and C is 30, then the difference between A and C is:

SSC CPO 2020

A)

60

B)

40

C)

80

D)

50

5)

The average weight of a group of 3 people A, B and C is 70 kg. When D joins this group, the average becomes 60 kg. E's weight is 5 kg more than that of D, replaces A and the average weight of B, C, D, and E now becomes 59 kg. What is the average weight (in kg) of A, D and E? (Correct to the nearest integer)

SSC CPO 2020

A)

40

B)

35

C)

39

D)

30

6)

If the average price of three chairs is Rs. 14,014 and their prices are in the ratio of 3 : 4 : 7, then the highest price (in Rs.) of chair is:

SSC CPO 2020

A)

5005

B)

3,003

C)

9,009

D)

21,021

7)

The average temperature for Monday, Wednesday and Friday was 41°C. The average for Wednesday, Friday and Thursday was 42°C. If the temperature on Thursday was 43°C, then the temperature on Monday was:

SSC CPO 2020

A)

41°C

B)

42°C

C)

43°C

D)

40°C

8)

The average weight of A, B and C is 65 kg. If the average weight of C and B is 61.5 kg, and the average weight of A and C is 68.5 kg, then the weight of C (in kg) is:

SSC CPO 2020

A)

65

B)

68

C)

67

D)

60

9)

The average of twelve numbers is 39. The average of the last five numbers is 35, and that of the first four numbers is 40. The fifth number is 6 less than the sixth number and 5 more than the seventh number. The average of the sixth and seventh numbers is:

SSC CPO 2020

A)

47.5

B)

50

C)

44.5

D)

39

10)

The average age of 40 students of a class is 16 years. After admission of 10 new students to the class, the average becomes 15 years. If the average age of 5 of the new students is 11 years, then the average age (in years) of the remaining 5 new students is:

SSC CPO 2020

A)

11

B)

16

C)

15

D)

10