NCO- Cyber Olympiad (SOF) Class 8: Questions 244 - 248 of 510

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Question number: 244

» Mental Ability » Basic Algebra

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MCQ▾

Question

Which steps could be used to solve this equation?

Choices

Choice (4) Response

a.

Subtract 11 from both sides, then multiply both sides by 7

b.

Divide both sides by 7, then add 11 to both sides

c.

Multiply both sides by 7, then subtract 11 from both sides

d.

Add 11 to both sides, then multiply both sides by 7

Question number: 245

» Mental Ability » Basic Arithmetic

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MCQ▾

Question

A can do a piece of work in 40 days. He works at it for 5 days and then B alone finishes the work in 21 days. The two together could have completed the work in

Choices

Choice (4) Response

a.

25 days

b.

35 days

c.

12 days

d.

15 days

Question number: 246

» Mental Ability » Number Games

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MCQ▾

Question

Which series is arranged from greatest to least?

Choices

Choice (4) Response

a.

0.5,5%, ,

b.

, , , 5%

c.

, 5%, 0.05,

d.

, 0.5,5%,

Question number: 247

» Mental Ability » Basic Algebra

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MCQ▾

Question

Which steps could be used to solve this equation?

Choices

Choice (4) Response

a.

Multiply both sides by the reciprocal of , then subtract 5 from both sides

b.

Divide both sides by the reciprocal of , then subtract 5 from both sides

c.

Subtract 5 from both sides, then multiply both sides by the reciprocal of

d.

Subtract 5 from both sides, then divide both sides by the reciprocal of

Question number: 248

» Mental Ability » Basic Arithmetic

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MCQ▾

Question

A, B and C enter into partnership. A invests some money at the beginning; B invests thrice the amount after 8 months and C invests double the amount after 6 months. If the annual profit be Rs. 54000, A’s share is

Choices

Choice (4) Response

a.

27000 Rs.

b.

12000 Rs.

c.

18000 Rs.

d.

16000 Rs.