Solution -let the fraction = x/y
Decrease by 20% in numerator and increase by 30% in denominator.
=(x×80/100)/(y×130/100)
=8x/13y
fraction of the old is the new fraction=(8x/13y) ×y/x
=8/13.
Find the simplified value of the following expression:
62 + 122 × 5 - {272 + 162 - 422}
18 × √225 + 378 ÷ √441 = ? × 9
Train M, ‘x’ metres long crosses (x – 30) metres long platform in 22 seconds while train N having the length (x + 30) metres crosses the same plat...
(2197)1/3 + (18)2 − 121 = ? − 69 × 5
{(5/8) + (4/5)} × (?/19) = 33
24.5% of 400 + 528 of 12.5 ÷ 11
Simplify the expression -:
17% of 250 + ? = 108
?2 = √20.25 × 10 + √16 + 32
25639 – 5252 – 3232 = ?
