Number, Ranking and Time Sequence Test Questions and Answers

Answer: B

Correct answer: 4

Counting the 1s that are followed by a 2 which is not itself followed by a 3 gives 4. The pair 1 2 3 is excluded each time it occurs, because there the 2 is followed by a 3.

Answer: B

Correct answer: 160

The possible totals are the four weights singly (20, 30, 50, 70), in pairs (50, 70, 80, 90, 100, 120), in threes (100, 120, 140, 150) and all together (170). 160 appears nowhere among them, so it cannot be made.

Answer: A

Correct answer: Pearl Tower

The comparisons give \( \text{Sky} < \text{Pearl} < \text{Unity} = \text{Cyber} \) and \( \text{Pearl} < \text{Indus} \). Sky is therefore the shortest and Pearl the next shortest, the other three all standing above it.

Answer: A

Correct answer: Four

Four 4s have a 7 before them and something other than 3 after them: 7 4 2, 7 4 6, 7 4 1 and the last 7 4 6. The 4 in 7 4 3 is ruled out by the 3 that follows it. So the answer is four.

Answer: C

Correct answer: Three

Three 6s have a 7 before them and something other than 9 after them: 7 6 8, 7 6 7 and 7 6 3. The 6 in 7 6 9 is ruled out by the 9 that follows it. So the count is three.

Answer: C

Correct answer: 35

Tarak is counted from both ends, so the row holds \[ 18 + 18 - 1 = \mathbf{35} \] boys.

Answer: A

Correct answer: 10

Arranged in ascending order the digits of 25673948 read 2, 3, 4, 5, 6, 7, 8, 9. The fourth from the right is 6 and the third from the left is 4, so the sum is \[ 6 + 4 = \mathbf{10} \]

Answer: A

Correct answer: 33

The mathematics book is six places to the right of the English book, which is 16th from the left, so it stands 22nd from the left. It is also 12th from the right: \[ 22 + 12 - 1 = \mathbf{33} \]

Answer: B

Correct answer: Two

An 8 qualifies only if both its neighbours divide it exactly, so both must be among 1, 2, 4 and 8. Two do: the 8 standing between 4 and 2, and the 8 standing between 2 and 2. The rest have a 3 or a 6 on one side, and neither divides 8. So the answer is two.

Answer: C

Correct answer: monday

A common year has 365 days, and \( 365 = 52 \times 7 + 1 \). The year therefore contains 52 whole weeks and one day over, so the last day falls on the same weekday as the first: Monday.