Mathematics Faqs

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Q. Work out $1.20 as a percentage of $16.

Ans: Let $1.20 as 'y' percentage of $16 $16 X (y/100) = 1.20 y = 1.20 X 100/16 y = 120/16 y = 7.5 Hence 7.5% of $16 is $1.20 May be this is the correct answer... read more

Q. Asif and Ben share $2100 in the ratio Asif : Ben = 3 : 7. Work out how much Asif receives.

Ans: Let Asif share is 3x And Ben share is 7x So 3x + 7x = $2100 10x = $2100 x = $210 Now Asif receives = 3x = 3(210) = $630 Hence $630 is the answer... read more

Q. Jeff and his friends win a prize. Jeff’s share is $160 which is 5/11 of the prize. Work out the value of the prize.

Ans: Let value of prize is x AS it is given that 5/11 of x is $160 So 5x/11 = $160 x = $160*11/5 x = $352 Hence the value of the prize is $352... read more

Q. Calculate the value of 4x^2 + xy when x = 3 and y = -2

Ans: Here x = 3 and y = -2 Now 4x2 + xy = 4*(3)2 + (3)(-2)               = 4*9 - 6         &nbs... read more

Q. The price of a book increases from $2.50 to $2.65 .Calculate the percentage increase.

Ans: Old price = $2.50 New Price = $2.65 Increase in price = $2.65 - $2.50 = $0.15 Price increased in percentage = (increase price/old price)*100         &nb... read more