Instructions

For the following questions answer them individually

Question 71

Find the area of a rhombus, one of its sides being 25 cm and one of the diagonals being 30 cm.

Question 72

Two taps P and Q can fill a cistern in 30 and 20 minutes respectively. Both P and Q were opened for a few minutes after which P was closed. The rest of the cistern was filled by Q in 5 minutes. After how many minutes was pipe P closed?

Question 74

A rat runs 20 m towards east and turns right and runs 10 m and turns right and runs 9 m; and again turns left and runs 5 m, and then turns left again and runs 12 m and finally turns left and runs 6 m. Now which direction is the rat facing?

Question 75

In Î”ABC, D and E are points on sides AB and AC respectively such that DE || BC and AD : DB = 3 : 1. If EA = 3.3 cm, then find the value of AC.

Latek

Question 76

When a light ray enters from a denser medium to a rarer medium, say from glass to air, how does the light ray bend?

Question 77

Two articles are sold for Rs.840 and Rs.960 at 20% gain and 4% loss respectively. What is the overall gain or loss percent?

Question 78

The product of two numbers is 192 and their sum is 28. Find the smallest of these two numbers.

Question 80

If 'cinto baoli tsi nzro' means 'her village is Sarurpur', 'mhi cinto keepi tsi oind' means 'her first love is literature', and 'oind geit tsi cinto pki' means 'literature collection is her hobby', which word would mean 'literature'?