Ques 1.
Rs. 8400 are divided among A,B,C and D in such a way that the shares of A and B,B and C as well as C and d are in the ratios of 2:3,4:5 and 6:7 respectively.The share of A is
(a) Rs 1280
(b) Rs 8400
(c) Rs 8210
(d) Rs 1320
Ques 2.
The sum of two numbers is 156 and their H.C.F, is 13. The number of such number pairs is
(a) 2
(b) 5
(c) 4
(d) 3
Ans 2. (13,143), (65,91)
Ques 3.
A man takes 2 hours to row 9km upstream and also 2 hours to row 17 km downstream .The speed of the current ( in km per hour ) is
(a) 1
(b) 2
(c) 3
(d) 4
Ans 3. Let speed of the Stream be x km/hr.
Let speed of the boat in still water be y km/r.
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