The lengths of diagonals of a rhombus are 24 cm and 10 cm, the perimeter of the rhombus (in cm) is:
52
56
68
72
A dishonest shopkeeper professes to sell goods at his cost price but uses a false weight of 950 gm for each kilogram. His gain percentage is:
10%
Ratio of A's age to B's age is 4 : 3. 'A' will be 26 years old after 6 years. The age of B now is:
2 years
12 years
21 years
15 years
A man sells an article at 15% profit. If he had sold it for â¹ 6/- more, he would have gained 18%. The main bought the article for
100
150
200
250
A' salary was decreased by 50% and subsequently increased by 50%. How much percent does he lose?
25%
50%
No loss
A car moving in the morning fog passes a man walking at 4km/h in the same direction. The man can see the car for 3 min and visibility is upto a distance of 130 m. The speed of the car is:
7 km/hr
5 km/hr
A money lender lends â¹ 400/- for 3 years to a person and lends â¹ 500/- for 4 years to the other person at the same rate of simple interest. If altogether he receives â¹ 160/- as interest, what is the rate of interest per annum?
5%
7%
9%
10%