Exams

First comments on the second. Appraiser comments on buildings and a Critic comments on books.

Hence, Appraiser : Building :: Critic : Book.

50 men can build a tank in 40 days 

Assume 1 man does 1 unit of work in 1 day

Then the total work is 50×40 = 2000 units

50 men work in the first 10 days and completes 50×10 = 500 units of work

45 men work in the next 10 days and completes 45×10 = 450 units of work

40 men work in the next 10 days and completes 40×10 = 400 units of work

35 men work in the next 10 days and completes 35×10 = 350 units of work

So far 500 + 450 + 400 + 350 = 1700 units of work is completed and

Remaining work is 2000 - 1700 = 300 units

30 men work in the next 10 days. In each day, they does 30 units of work.

Therefore, additional days required = 300/30 =10

Thus, total 10+10+10+10+10 = 50 days required.

Ration synonyms are allowance, consignment, quota,...

Alternately it is also called as Pragjyotisha before British rule.

Let 1310 = x 

=> 3x = 10

Given that 125=3

Therefore, 52x = 10 

=> x = 10/3 = 4.

Angle traced by hour hand in 12 hrs. = 360º. 

Angle traced by it in 113hrs =36012×1130= 1100 

Angle traced by minute hand in 60 min. = 3600 

Angle traced by it in 40 min = 36060×400= 2400 

Required angle (240 - 110)º = 1300