Posted by:
deepshikhasingh15
|
On:
Time ended
G7 Rational Numbers
Math quiz helps us to enhance brains neural network.
1 / 20
1) In an Olympiad test, a student score 3/4 of the total marks in Section A and 2/3 of the total in Section B.
If both sections carry equal marks, the overall score as a fraction of total marks is:
2 / 20
2) Mark scored 3/4 on Test A and 4/5 on Test B.
Each test is out of 60.
What are total marks obtained?
3 / 20
3) Which of these represents the same rational number in two ways?
4 / 20
4) Which of these operations can turn a rational into an integer?
5 / 20
5) Simplify:
Percentage = (18 / 24) × 100 = 75%
6 / 20
6) The reciprocal of a non-zero rational number a/b is:
7 / 20
7) Which of the following is CORRECT?
Common denominator is 24: 7/8 = 21/24, 5/6 = 20/24, 11/24 = 11/24 Calculate: 21/24 – 20/24 + 11/24 = (21 – 20 + 11)/24 = 12/24 = 1/2 Wait, 1/2 not listed, re-check: Options closest to 1/2 is none, so check if a mistake: (7/8) – (5/6) + (11/24) = (21/24) – (20/24) + (11/24) = 12/24 = 1/2 Correct answer is 1/2 but not given. So correct answer is 1/2.
8 / 20
8) Express the result in the form of a rational number:
(3.1 + 1.4 + 2.0) + (7/2 + 3/2 + 3/2)
9 / 20
9) A wizard mixes 3/4 vial of Moonlight Potion with 0.65 vial of Sunfire Potion.He needs exactly 7/4 vials for the spell.
How much more potion does he still need?
10 / 20
10) Which of the following is always true?
11 / 20
11) Evaluate:
Common denominator 30: (-3/5) = -18/30, (7/10) = 21/30, (2/3) = 20/30 Sum: (-18 + 21 – 20)/30 = (-17)/30 = -17/30 (approx -0.5667) Closest to -1/30 = -0.0333 so check carefully: (-18 + 21 – 20) = -17 So answer is -17/30 not matching any answer exactly, so re-check options: Answer 3 (-1/30) is closest but incorrect; best to write -17/30 as exact. Hence correct answer is none, or nearest is -1/6? (-1/6 = -5/30) no. So write correct answer as -17/30.
12 / 20
12) Which rational number lies between –3/8 and 1/4?
13 / 20
13) Simplify:
Increase = 15% of 1200 = 0.15 × 1200 = 180 New population = 1200 + 180 = 1380 V
14 / 20
14) Fill in the blanks.
In two rational numbers x/y and m/n, if xn < ym, then __(i)__ and if xn > ym, then __(ii)__.
15 / 20
15) Which of the following statements is false?
Increase = 65 – 50 = 15 Percentage increase = (15/50) × 100 = 30% Correct answer is 30%
16 / 20
16) Which statement about ordering is true?
17 / 20
17) If the sum of two rational numbers is 7/12 and one of them is -5/18.
Find the multiplicative inverse of the other rational number.
Division is multiplication by reciprocal: (7/12) × (18/14) = (7 × 18) / (12 × 14) = 126 / 168 = 3/4
18 / 20
18) A theatre refunds 2/7 of ticket price due to a system error and then gives an extra refund of ₹0.15.If the ticket cost is ₹1, how much refund is given?
19 / 20
19) Evaluate:
(4/7)x = (5/14) + (3/14) = 8/14 = 4/7 x = (4/7) ÷ (4/7) = 1
20 / 20
20) Which of these decimals represents a rational number?
Restart quiz
This content is restricted to site members. If you are an existing user, please log in. New users may register below.
Posted by
in
Your cart is currently empty!
Notifications
