The sum of interior angles of a regular polygon is 1440°. The number of sides of the polygon is
10
The radii of two circles are 10 cm and 24 cm The radius of a circle whose area is the sum of the areas of these two circles is
26 cm
When n is divided by 6, the remainder is 4. When 2n is divided by 6, the remainder is
2
A reduction of 20% in the price of rice enables a customer to purchase 12.5 kg more for Rs 800. The original price of rice per kg is
Rs 16
The ratio of boys and girls in a college is 5:3. If 50 girls join the college, the ratio become 9:7. The number of boys n the college in
500
Three men can complete a piece of work in 6 days. Two days after they started the work. 3 more men joined them. How many days will they take to complete the remaining work?
2 days
A cloth merchant on selling 33 metres of cloth obtains a profit equal to the selling price of 11 metres of cloth. The profit is
50%
A single discount equivalent to successive discounts of 20%, 10% and 5% is
31.6%
If the graphs of the equations x+y=0 and 5y+7x=24 interest at(m,n), then the value of m+n is
0
A quadrilateral ABCD circumscribes a circle and AB=6 cm, CD=5 cm and AD=7 cm. The length of side BC is