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Pubali Bank Teller-2017 – Math Solution

1. (8÷88) × 8888088=?
Solution:
8/88×8888088
=8×101001
=808008

2. A and B started a business jointly. A’s investment was thrice the investment of B and the period of his investment was two times the period of investment of B. If B received Tk. 4000 as profit, then their total profit is:
Solution:
Here, A=3b
Also A’s period two times of B means A=3b×2=6b
So B’s profit= 4000
Therefore A’s profit 6b=4000*6=24000
Total 24000+4000=28000

3. 0.002×0.5=?
Solution: 0.001

4. If x/5=y/8, then (x+5): (y+8) is equal to:
Solution:
Here x/5=y/8 means: x:y = 5:8
So x+5=5+5=10
y+8=8+8=16
Now 10:16=5:8 (ans)
5. Rahim is 40 years old and Karim is 60 years old. How many years ago was the ratio of their ages 3:5?
Solution:
Let, x years ago
ATQ,
40-x/60-x=3:5 or 3/5
Or, 200-5x = 180x-3x
Or, 2x=20
x=10

Math Preparation