For the following questions answer them individually
What is the value of $$810 \div 5 - 25 \times 13 + 2 \times 12$$?
Sneha alone can complete a work in 30 days and Anju alone can complete the same work in 45 days. Anju alone worked for first 15 days and then left the work. In how many days will Sneha alone complete me remaining work?
A bicycle was bought for $120 and sold at a profit of 15%. Find the selling price.
If 4P = 5Q and 3Q = 4R, then what is the value of P : Q : R?
Successive discounts of 15% and 12% are equivalent to a single discount of :
A sum of Rs. 7000 is invested in a scheme of simple interest. The rate of interest in this scheme is 20 percent per annum. If Rs. 1750 interest is obtained, then for how many months is the rum invested?
A new students having weight 47 kg join a class of 41 students and the average weight of the class reduces by 1.5 kg. What is the new average weight of the class?
Average age of a group of 27 boys is 21 years. If a boy leaves the group, then the average age becomes 21.7 years. What is the age of the boy who left the group?
Find the value of $$1573 \div 13 \left\{(12 - 6) + (48 - 53)\right\}$$
If 70 percent of X1 = (6/7) of X2, then what is X1 : X2?