# Mathematics Faqs

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### Related FAQs

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