Question

17.Simplify (a) (4/3)3 x (4/3)2

(b) { ( - 1/2) 2 }

-4

18. The length of the shadow of a 1.5 m high statue at a certain time of the day is 2.5m .

What is the height of another statue whose shadow at that time is 3.5 m long ?

19.A shopkeeper sold two fans at₹ 924 each .He loses 20% on the first fan and gains

20% on the second fan. Find the gain and loss percent in the whole transaction.

20.Anil borrowed a sum of ₹ 12300 for a certain period at the rate 10% per annum and

returned ₹ 18450 on expiry of the time . Find the time for which the money was

borrowed .

21.An exterior angle of the triangle is of measure 80° and one of the interior opposite

angle is 25°

. Find the measure of the other interior angle .

22.A rectangular park of length 64 m and breadth 40 m is to be surrounded externally by

a path which is 4 m wide . Find the area of the path .

23.A 6.5 m long ladder is placed in a slanting position against a wall .Its top reaches a

point on the wall which is 6 m above the ground . Find the distance of the bottom of

the ladder from the wall .

24.Construct a triangle ∆ ABC in which BC = 4.7 cm Angle B = 50°

and Angle C = 60°
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Answer 1

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