Rinku

PQRS is a cyclic quadrilateral and angle(pqr)-80 degree,what is the value of angle (rsp)?

A circular copper wire of radius 7cm is bent to form a rectangle. If the breadth and the length of the rectangle are in the ratio 4:7 respectively. What is the breadth of the rectangle?

You are given one litre each of 0.5 M HCl and 0.2 M. The ratio in which they should be mixed so as to give maximum volume of 0.4 M HCl should be

100%-15%=85% 85 of60%=51% 85-51=34% 34%=4080 100%=12,000

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