For the following questions answer them individually
Two students appeared for an examination. One of them secured 10 marks more than the other and his marks were 75% of the sum of their marks. The marks obtained by them are
By increasing the price of entry ticket to a fair in the ratio 3:7, the number of visitors to the fair has decreased in the ratio 16:13. In what ratio has the total collection increased or decreased?
To cover a distance of 315 km in 2.8 hours what should be the average speed of the car in meters/second?
In an arithmetic progression, if 17 is the 3rd term, -25 is the 17th term, then -1 is which term?
Praful has done 1/2 of a job in 30 days, Sarabjit completes the rest of the job in 10 days. In how many days can they together do the job?
Ticket for an adult is Rs 500 and a child is Rs 200. 1 child goes free with two adults. If a group has 20 adults and 8 children what will be the discount the group get?
A factory buys 8 machines - 3 Machine A, 2 Machine B and rest Machine C costing Rs 100000, Rs 80000 and Rs 45000 respectively. Calculate the average cost of these machines?
In ΔABC, the angle bisector of ∠A cuts BC at E. Find length of AC, if lengths of AB, BE and EC are 9 cm, 3.6 cm and 2.4 cm?
