Thursday 17 March 2011

Ratio ant proportional


01.   First ,third, fourth term of a proportional are 45,25,35, Find third term.
02.   If 36 , x , x , 16 are in proportional Find value of x
03.   Find value of x if 25,35, x   are in proportional
04.   An electrical pole cast shadow length 20 m at a time when a tree of 6 cm cast shadow of 8 m. Find the height of pole .
05.   The length of the side of a triangle are in ratio 1 : 3 : 5 .If perimeter of triangle is 90 cm find its largest side .
06.    Rohit earns Rs. 7650 and saves Rs. 918 per month Find ratio of            (I) his income to his saving                                                                       (II) His income to his expentiture                                                              (III) his expentiture  to his saving    
07.   Find the ratio of the price of pencil to that of ball pen if pencil cost Rs 96 per score and ball pen cost Rs. 50.40 per dozen.
08.   The sum of two even num. is 74 . Find numbers
09.   A man is 3 times as old as his son . Three years ago the man was  4 times as old as son . Find their age .
10.   After 32 yrs , Rahim will be 5 times as old as he was 8 yrs ago . Find the  present age .
11.   Find the two num such that one of them is 5 times  the other ,while their difference is 132 .        

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