SI – OPERATION WITH WHOLE NUMBERS (10 QUESTIONS)

George’s lucky number is less than 10.
He multiplied his lucky number by 6
Then, he increased the product by 8.
Finally, he divided the sum by 2.

If the quotient he got was 25, what was George’s lucky number?

A. 1

B. 3

C. 5

D. 7

E. 9

Lucy picked a number less than 100.
When the number that Lucy picked is divided by 7, the quotient is 12 with a remainder of 1.

What number did Lucy pick?

A. 83

B. 85

C. 88

D. 90

E. 91

Thomas only played 9 games this basketball season.

For the first 8 games he played, he scored an average of 32 points per game.

How many points did he score in the last game of the season if his average score per game for the entire season was 30 points per game?

A. 14 points

B. 20 points

C. 26 points

D. 30 points

A jar contains blue, red, and green balls only.
There are 16 blue balls in the jar and 24 more red balls than blue balls.

If the number of green balls in the jar is half the number of red balls, how many balls are in the jar?

A. 12

B. 20

C. 44

D. 68

E. 76

Brian’s age is half the sum of the ages of Jack and Cory.

If Brian is 2 years younger than Jack and Cory is 32 years old, how old is Brian?

A. 28 years old

B. 30 years old

C. 32 years old

D. 34 years old

E. 36 years old

Carl can use the digits 2, 5, 6, and 8 only once to form four-digit numbers.

What is the difference between the largest and smallest four-digit number that he could have formed?

A. 2 568

B. 4 378

C. 5 682

D. 6 084

E. 8 652