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As HCF is 13 so let numbers be 13x & 13y. It means x & y must be co-prime. Now 13x+ 13y = 104, So x + y = 8. Now pairs of (x , y) can be (1,7) , (2,6) , (3, 5) & (4,4) but (2,6) and (4,4) are not co-prime hence number of pairs are 2.
?% of 24% of 1200 + 12 × 11 = 204
If 14 (x - y) = 2744 and 14 (x + y) = 537824, what is the value of x?
(75 + 0.25 × 10) × 4 = ?2 - 14
3/7 Of 504 ÷ 12 + 17 = √?
25% of 440 + 88 X (1/2)2 - 28 = 8 X ?
Find the value of 45 - 3 x (4 of 6 + 12 ÷ 3 × 6 – 4 × 5) + 6.
Determine the simplified value of the expression: 12 × 15 - 20 + 15 + 12 - 18 + 3 × 4 + 18.
154 × 7 + 480 × 5 = ?% of 6956
56 × 18 + ? × 21 – 49 × 12 = 63 × 26