Assistant Provincial Disaster Management Board of Revenue (H59) 2021

Description for Correct answer:

 21 : 18 :: 42 : x

=> x = (<span id="MathJax-Element-2-Frame" class="MathJax" style="box-sizing: border-box; display: inline; font-style: normal; font-weight: normal; line-height: normal; font-size: 15px; text-indent: 0px; text-align: left; text-transform: none; letter-spacing: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; position: relative;" tabindex="0" role="presentation" data-mathml="42×1821“>42×18)/21 = 36

A= √5+1+ √5 -1  , B= √5 -1+ √5 + 1

A + B = ( √5+1+ √5 -1) + (√5 -1+ √5 + 1)

           = 

29.94/1.45=299.4/14.5

= (2994/14.5*1/10)[Here, Substitute 172 in the place of 2994/14.5]

= 172/10

= 17.2.

Let x be volume of the solution

8/100 × x = 15.

8/100 = 15/x. Cross multiplication.

8x = 15×100.

x = 15 × 100/8.

= 187.5 ml.