Tuesday, 7 March 2017

Question of the day 7-3-2017

Three  times  a number  is 20%  more  than  twice  another  number   when  increased  by  105.  If  twice the first  number increased  by 36  is 20%  less  than  three  times  of  the  second  number,  then  what  is  the  first  number?

a. 150
b. 162
c. 180
d. 240

e. None of these.
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1 comment:

  1. Bhaskar Reddy13 March 2017 at 10:04

    Answer: Option b
    Explanation:
    Let the two numbers be x and y.
    3x = 1.2( 2y +105)
    3x = 2.4y +126 ………………..(1)
    2x +36 = 0.8(3y)
    2x +36 =2.4y ………………..(2)
    x = 162

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