1. The largest and the smallest angles of a triangle are in the ratio of 3:1 respectively. The second largest angle of the triangle is equal to 44°. What is the value of 150 per cent of the largest angle of the triangle? (c)
(a) 149
(b) 129
(c) 153
(d) 173
2. A man went uphill with a speed of 20 km.p.h. and came downhill with a speed of 30 km p.h. The average speed for his journey was (c)
(a) 25 km. p.h.
(b) 22 1/2 km. p.h.
(c) 24 km. p.h.
(d) 25 1/2 km. p.h
3. The largest numbers which divide 30, 78 and 102 to leave the same remainder in each case is (a)
(a)24
(b) 20
(c) 8
(d) 16
4. The age of Sonal and Nitya are In the ratio of 9:5 respectively. After 8 years the ratio of their age will be 13:9. What is the difference (in years) between their age? (d)
(a) 4 years
(b) 6 years
(c) 14 years
(d) None of these
5. The L.C.M of two numbers is 14 times their H.C.F. The sum of the L.C.M. and the H.C.F . is 600. If one number is 280, then the other number is (c)
(a) 40
(b) 60
(c) 80
(d) 100