Mathematics Olympiad Class-7 Test Prep-2

Test Preparation on Mathematics Olympiad Class-7 Test Prep-2

1.

Four of the following five are alike in a certain way and so form a group. Which is the one that does not belong to that group?

1CBF
2EBJ
3KBV
4DET

C B F
3 × 2 6
E B J
5 × 2 10
K B V
11 ×2 22
D E T
4 × 5 20

2.

Four of the following five are alike in a certain way and so form a group. Which is the one that does not belong to that group?

1EY
2CI
3DP
4LO

second letter is square of the first letter of all other options

3.

(- 20) × (- 5) is equal to

1100
2-100
320
45

4.

(- 30) × 20 is equal to

1600
2-600
350
410

5.

10 × (- 20) is equal to

1200
2-200
330
410

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