Question 25 & 26
Question 25: A sum of money shall be allocated to a,b,c, and d in a ration of 5:2:4:3. If c receives more than 1000 Rs than d, What will be the share of b ?
a. 500 b. 1500 c. 2000
FPSC AD IB 2nd batch 2017
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Solution;
Using share formula;
Now C gets Rs 1000 more than D;
Put value of z from eq(1)
;
So,
Question 26: In 9 seconds, a train running at speed of 60 km/hr crosses a pole. Waht is the train’s length?
a. 110 m b. 170 m c. 150 m
FPSC AD IB 2nd Batch 2017
Solution:
The train will completely cross the pole after traveling distance equal to its length;
Using distance formula;
But here
and
Putting these values in eq (1) above;
So, the length of the train is 149.4 meters or approximately 150 meters