SPEED MATH - 17th september

1) If (a,b) are two integers in such a way that a³ = b², then which of the following sets of numbers (a,b) will satisfy this equation

• 3,6

• 6, 15

• 9, 27

•         None of these

2) If the difference between squares of any two consecutive numbers is 49, then the consecutive numbers are

• 22, 23

• 23, 24

• 24, 25

• 25, 26

Tags

CCSS.8.EE.A.2

3) If a 20 meter tape is folded in the shape of a rectangle such that the area of the rectangle is 100 sq.mts, if the length of the rectangle is L, which of the following equations are true

• L² – 20L  = 100

• L² – 10L = 100

• 20L – L² = 100

• 10L  - L² = 100

4) In an animal cells get regenerated by multiplying, assuming initially there are 50 cells and they get doubled after every 2ms, What will be the total number of cells that will be present after 10ms.

• 800

• 1200

• 1600

• 2000

Tags

CCSS.HSF.LE.A.4

The number of factors of 36 is

• 6

• 7

• 8

• 9

Tags

CCSS.4.OA.B.4

which of the following numbers is largest

• 3/5

• 5/7

• 7/9

• 9/11

Tags

CCSS.4.NF.A.2

The one’s digit of the cube of 23 is

• 6

• 7

• 3

• 9

Tags

CCSS.8.EE.A.2

Which of the following is the square of an odd number

• 256

• 361

• 144

• 400

Tags

CCSS.8.EE.A.2

The sum of successive odd numbers 1, 3, 5, 7, 9, 11, 13 and 15 is

• 81

• 64

• 49

• 36

The human body has about 100 billion cells. this number can be written in exponential form as

• 10⁹

• 10¹⁰

• 10¹¹

•  10¹²  

Tags

CCSS.6.EE.A.1