G7 Fractions, Decimals and Percentage - Math and Science Olympiad trainer and online tutoring

G7 Fractions, Decimals and Percentage

Math quiz helps us to enhance brains neural network.

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1) A number is 72% of another number.
If the sum of the two numbers is 86% of 500, what is the bigger number?

A) 250

B) 225

C) 200

D) 275

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2) Find the value of:
(5 + 0.5 + 0.05 + 0.005) × (0.4 + 0.04 + 0.004)

A) 0.246642

B) 2.46642

C) 24.6642

D) 246.642

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3) Meena spends of her income on household expenses and on children’s education.
If her monthly income is ₹60,000, then her monthly savings are:

A) ₹5,000

B) ₹12,000

C) ₹7,000

D) ₹10,000

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4) If

find 77x − 144.

A) 1/2

B) 0

C) 2

D) 1

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5) Evaluate:

5.55 + 5 + 5.5 – 5.005

A) 11.045

B) 9.075

C) 9.825

D) 10.055

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6) In a class of 100 students, 1/4 of the total number of students like to play football 2/5 Only, of the total number of students like to play volleyball only and the remaining students like to play both.

What fraction of the total number of students Likes play both games?

A) 1/20

B) 9/20

C) 3/20

D) 7/20

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7) Simplify:

A) -1

B) 1/2

C) 0

D) 1

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8) Simplify:

A) 1

B) -1

C) 0

D) 1/2

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9) Two numbers are respectively 28% and 36% less than a third number.

By what percent is the first number greater than the second number? ( up to one decimal place)

A) 12.50 %

B) 13.80 %

C) 12.20 %

D) 11.80 %

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10) In an examination, 35 % of the students failed in Mathematics and 44 % failed in English.

If 28 % of the students failed in both the subjects, then the percentage of students who passed in both the subjects, then the percentages of students is:

A) 51 %

B) 61 %

C) 49 %

D) 39 %

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11) If

find 84x − 116.

A) 1/2

B) 1/3

C) 0

D) 1

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12) What should come in place of ⬜ in the given expression?

A) Can't be determined

B) >

C) =

D) <

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13) Express 0.45 % as a simplified fraction and also as a ratio a:b.

A) 9/200, 9 : 200

B) 9/2000, 9 : 2000

C) 45/10000, 10000 : 45

D) 1/200, 1 : 200

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14) If price of sugar is decreased by 20 percent, then a person can buy 20 kg sugar more for ₹2500.

What will be the new price of the sugar per kg?

A) ₹25

B) ₹12.5

C) ₹50

D) ₹30

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15) Simplify:

A) 65/28

B) 17/12

C) 29/24

D) None of these

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16) A shopkeeper gains 12% by selling an article at a certain price.
If he sells it at double that price, then the profit percentage becomes:

A) 124 %

B) 112 %

C) 212 %

D) 224 %

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17) Rehan spends 25% of his monthly income on rent, 15% on transport, 40% on household expenses and the rest on savings.
If his monthly income is ₹32,000, then how much does he spend on transport, household expenses, and savings altogether?

A) ₹26,000

B) ₹25,000

C) ₹24,600

D) ₹23,500

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18) Find the product:

A) 1/5

B) 2/15

C) 4/15

D) 1/6

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19) 0.15 kg black tea is mixed with 1/8 kg green tea.

What fraction of the blend is green tea (to three decimal places)?

A) 0.25

B) 0.333

C) 0.286

D) 0.455

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20) Radhika spends 2/3of her income on household needs and of her income on transportation.
If her monthly income is ₹48,000, then her monthly savings are:

A) ₹12,000

B) ₹10,000

C) ₹8,000

D) ₹14,000

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