Logical Reasoning MCQ - Number and Letter Series

36 If rain is water, water is road, road is cloud, cloud is sky, sky is sea and sea is path, where do aeroplanes fly?

The aeroplanes fly in the ‘sky’ and the ‘sky’ is called ‘sea’. Hence, the aeroplanes fly in the ‘sea’.

37 In a certain code, ‘247’ means ‘spread red carpet’; ‘256’ means ‘dust one carpet’, and ‘236’ means ‘one red carpet’. Which digit in that code means ‘dust’?

In the first statement, the common code digit is ‘2’. In the second statement, the common word is ‘carpet’. Thus, ‘2’ means ‘carpet’. In the second and third statements, the common code digit is ‘6’ and the common word is ‘one’. Thus, ‘6’ means ‘one’. Therefore, in the second statement, ‘5’ means ‘dust’.

38 In a certain code language, ‘Siberia is a cold place’ is written as ‘a cold is place Siberia’. In the same code, ‘Water freezes to ice here’ is written as ‘freezes here ice to water’. How will ‘covers ten per cent of earth’ be written?

The first alphabet of the words is to be picked and then written as they appear in the alphabetic series.

39 Find the missing number in the following series.
512, 256, 128, ?, 32, 16, 8

Each number is half of its preceding number.

40 Find the missing number in the following series.
2, 7, 17, 32, 52, 77,?

+5, +10, +15, +20, +25, +30