21 . Find the average of 22 + 42 + 62 + 82……..+ 202. ?
(D). 168Show Answer
22 . A girl read 3/8th of a book on one day and 4/5th of the remainder on another day. If there were 40 pages unread, how many pages did the book contain?
(D). 480Show Answer
23 . If the numerator of a fraction is increased by 10% and the denominator is decrease by 25%, the fraction obtained is 2/5. What was the original fraction?
(D). None of theseShow Answer
24 . If the length of square is increased by 4cm its area is increased by 40cm2. Find the area of square in cm2?
(D). 100Show Answer