Explanation

From the given sequence, we see that the pattern followed is:

3 + 1 = 4

4 + 2 = 6

6 + 3 = 

9 + 4 = 13

13 + 5 = 18

Explanation

9.5 x 4 =38

Explanation

Multiply: 0.4 x 710 =​284

Explanation

The result of 340/50 is a terminating decimal with 1 digit to the right of the decimal point.

340 divided by 50 in decimal = 6.8

340 divided by 50 in fraction = 340/50

340 divided by 50 in percentage = 680%

Explanation

To convert 810/500 so you can write it as a decimal,

simply divide the numerator by the denominator, like this:

= 810/500

= 810 ÷ 500

= 1.62

Explanation

Let: B= x   and A= 2x

(A+B) 18 days work = 1 

(A + B) one day work= 1/18

So:

x + 2x =1/18

⇒     x =  1/54 

So A=27 and B= 54

Explanation

Given: x = 3  

x³ = 3 × 3 × 3 = 27

Explanation

5 percent *5

= (5/100)*5

= (5*5)/100

= 25/100 = 0.25

Explanation

Find the prime factorization of 70

70 = 2 × 5 × 7

Find the prime factorization of 80

80 = 2 × 2 × 2 × 2 × 5

Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:

LCM = 2 × 2 × 2 × 2 × 5 × 7

LCM = 560

Explanation