Mental Ability (NCO- Cyber Olympiad Class 6): Questions 391 - 394 of 394

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Question number: 391

» Mental Ability » Number Games » Number Series

MCQ▾

Question

One number in this sequence is wrong. 8, 16, 18, 36, 38, 78

What change should be made to correct this sequence?

Choices

Choice (4) Response

a.

78 should be replaced by 76

b.

78 should be replaced by 74

c.

36 should be replaced by 34

d.

38 should be replaced by 40

Question number: 392

» Mental Ability » Basic Arithmetic

Appeared in Year: 2011

MCQ▾

Question

⃞ means ‘is greater than’, ∆ means ‘is smaller than’, ○ means ‘is equal to’, × means ‘plus’, and = means ‘minus’. If ac and b×dc , then ________.

Choices

Choice (4) Response

a.

da

b.

ad

c.

bc

d.

da

Question number: 393

» Mental Ability » Basic Arithmetic

Appeared in Year: 2011

MCQ▾

Question

Kim practiced the piano for 5 days. On the first day, she practiced for 22 minutes. Each of the following days, she practiced 6 minutes more than the previous day. How many minutes did Kim practiced in all?

Choices

Choice (4) Response

a.

124 minutes

b.

137 minutes

c.

116 minutes

d.

170 minutes

Question number: 394

» Mental Ability » Basic Arithmetic

Appeared in Year: 2011

MCQ▾

Question

Harry does 15 sit-ups every morning for 10 consecutive weeks. How many sit-ups he did in all?

Choices

Choice (4) Response

a.

12600

b.

1500

c.

10500

d.

1050

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