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?
Tickets numbered 1 to 37 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 4 or 10?
Average age of 6 Children’s of a family is 8 years. The average of Children’s and their parent’s age is 22 years. If father is 8 year older than the mother then find the age of their mother.
Let, Mother’s age is = X
Then father’s age = X+8
Sum of age of 6 children’s = 48
Sum of children’s and their parents age = 48+X+X+8= 56+2X
Average of children’s and their parents age = 56+2X /8
As given, 22= 56+2X/8
2X = 120, X= 60 years
A Car covers distance 440 km in 8 hrs. A motorbike covers the same distance in 5 hrs. What is the respective ratio between the speed of the Car and the motorbike?
Distance covered by Car = 440 Km
Time taken to cover 440 km = 08 Hrs.
Speed of Car = 440/8= 55 Km/Hrs.
Speed of motorbike = 440/5 = 88 Km/Hrs.
Hence the required ratio = 55: 88 = 5: 8
From an organization of 6 persons, in how many ways can we choose a manager and a senior manager assuming one person cannot hold more than one position?