Average

Find the value of x in the equation: 5x + 25 =10

• 5

• 3

• -3

• -5

If x=8, find the value of y in the equation: 4x – 2y = 28

• -4

• -2

• 4

• 2

13 -21 34 -55 89 ___?

• -95

• 104

• -123

• -144

Answer explanation

subtract the 3rd and 1st to get the 2nd number, do the same to the next 3 sets

1, 4, 9 , 16, 25, 36, 49, 64, ___ ?

• 72

• 75

• 81

• 90

Answer explanation

– you can get this by squaring the numbers (1×1=1), (2×2=4), (3×3=9) and so on…

AZ CX EV GT ____?

• . IR KP

• IR KQ

• IS KQ

• IS KP

Answer explanation

Use the equivalent ascending and descending letters in the alphabet

168 is what percent of 672?

• 25%

• 50%

• 400%

• 80%

Find the value of x in the equation: 3x + 7 = 28

• 7

• -7

• 4

• -4

The difference between 8 times a number and 17 is 231. Find the number.

• 31

• 37

• 48

• 1984

Four times the perimeter of a parking lot is 16 less than 2,000 meters. What is  the perimeter of the lot?

• 496

• 504

• 992

• 1008

Eighteen less than seven times the number of sandwiches is 269. How many sandwiches are there?

• 32

• 41

• 44

• 45