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Probability of selection of husband = 1/7, it means of not selecting = 6/7 Probability of selection of wife = 1/5, it means of not selecting = 4/5 So, only 1 will be selected = “Wife selected, and husband is not selected” or “husband selected and wife doesn’t” = (1/5)* (6/7) + (1/7)* (4/5) = 6/35 + 4/35 = 10/35 = 2/7
(95.89% of 625.15 + 36.36% of 499.89) ÷ 6.02 = ? – 269.72
(124.99)² = ?
The greatest number that will divide 398,436, and 542 leaving 7, 11, and 15 as remainders, respectively, is:
1219.98 ÷ 30.48 × 15.12 = ? × 2.16
(?)2 + 6.113 = 25.92 – 19.03
(23.99)2– (17.99)2+ (1378.98 + 44.99) ÷ ? = 608
Find the ratio of the area of an equilateral triangle of side ‘a’ cm to the area of a square having each side equal to ‘a’ cm.