Question
The number of marbles with Amit and Rahul is 14 more than
with Kabir. Rahul and Kabir together have 4 more marbles than Amit. If Amit and Kabir together have 36 marbles, how many marbles are there in total?Solution
ATQ,
Let marbles with Amit = x, Rahul = y, Kabir = zThen:
x + y = z + 14 ………(1)
y + z = x + 4 ………(2)
x + z = 36 ………(3)
Add (1), (2), and (3):
→ 2(x + y + z) = x + z + 14 + 4 + 36 = x + z + 54
→ x + z = 36
→ 2(x + y + z) = 36 + 54 = 90
→ x + y + z = 45
More No. System Questions
65% of ? = 50 + 20 × 4
84367 + 65441 + 32645 – 21145 – 10769 = ?
45% of 1020 + ?% of 960 = 747
(750 / 15 × 15 + 152 + 20% of 125) = ?3
Find the simplified value of the following expression:
72 + 132 X 4 - {232 + 172 - 402
(3/7) x 868 + 25% of 240 = (? + 65)
(75 + 0.25 × 10) × 4 = ?2 - 14
? = (25% of 20% of 800) × 8 – 25% of 260
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