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From I: Portion of tank filled in a minute = 1/45 + 1/60 - 1/80 = (16 + 12 – 9)/720 = 19/720 Hence, I does not follow From II: Portion of the tank filled in a minute 1/45 + 1/70 – 1/50 = (70+45-63)/3150 = 52/3150 Hence II also does not follow. From III: Portion of the tank filled in a minute. = 1/45 + 1/45 – 1/90 = (2 + 2 – 1)/90 = 3/90 = 1/30 From IV: Portion of the tank filled in a minute = 1/45 + 1/36 – 1/60 = (4 + 5 – 3)/180 = 6/180 = 1/30 Hence only III and IV satisfy the given blanks.
Which of the following is the largest freshwater lake in India?
Which of the following is the correct sequence of the mountain ranges of Himalayas when arranged from north to south?
If you travel through the shola forests of western Ghats, you are likely to see which of the following features?
1. Epiphytes like Lichens
Which is the largest city in the world by population ?
With reference to the Peninsular plateau, which of the statements given below is incorrect?
Which river is the longest river in India?
Debsa Pass is a mountain pass in which state?
Which river is known as the 'Sorrow of Bengal.
Which one of the following pairs of islands is separated from each other by the ‘Ten Degree Channel’?
Arrange the following left bank tributaries of Ganga from west to east:
1. Burhi Gandak
2. Gomti
3. Ramganga
4. Gha...