Instructions

For the following questions answer them individually

Question 74

Which of the following country has co-sponsored 'Cobra Gold' - an annual multilateral military exercise alongwith Thailand?

Question 77

A, B and C can complete a work in 10, 12 and 15 days respectively. All three of them starts together but after 2 days A leaves the job and B left the job 3 days before the work was completed. C completed the remaining work alone. In how many days was the total work completed?

Question 78

A solid sphere of diameter 7 cm is cut into two equal halves. What will be the increase (in cm2) in the total surface area ?

Question 79

After a discount of 23% an article is sold for Rs 1848. What is the marked price (in Rs) of the article?

Question 80

If $$\frac{3}{5}P=\frac{7}{2}Q=\frac{7}{5}R$$, then what is the ratio of P,Q and R respectively ?