A man starts to run along a particular direction with a speed of 54 km./hours. After running upto a distance of 100 m, he increases his speed by 50 % of the initial speed, and runs upto 200 m. Total time taken by the man will be
There are two bags. First contains 7 red and 5 violet balls whereas second contains 7 violet and 5 red balls. A ball is drawn at random from both the bags. Probability of both balls having same colour is
Mohit got a profit of 40% in his investment of 7 lacs and loss of 12% in his investment of 8 lacs rupee. Find the overall profit in overall investment.
Total investment = 8 + 7 = 15 lacs
profit in first investment = 40*7/100 = 2.8 lacs
loss in second investment = 12*8/100 = 0.96 lacs
so overall profit = 2.8-0.96= 1.84 lacs
he cost of 6 eggs is 30 rupee. If a plate 1.5 dozen eggs costs rupee 130 to shopkeeper, then what will be the profit of shopkeeper on selling a plate of egg?
) Calculate the present age of Madhav, if after 25 years his age will be 12 times of his age before 11 years back.
OPtion
1) 16.2 years
2) 17.7 years
3) 18.2years
4) 15.4years
5) 14years
6) 13years
7) 14.27years
8) 15.1years
9) 16years
10) None of the above
Solution
Let Madhav’s present age be x
Madhav’s age before 11 years = (x - 11)
Madhav’s age after 25 years = (x + 25)
As given is the question,
(x + 25) = 12 (x – 11)
x + 25 = 12x – 132
11x = 157, x = 157/11
= 14.27 years.
The loss incurred by selling a mobile phone by a shopkeeper for Rs. 22200 is the same amount as the profit gained after selling same mobile on 25500. What is the cost price of the mobile phone?