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We know that, on covering same distance at two different speeds, s1 km/hr and s2 km/hr, respectively, then Average speed = (2 X s1 X s2) ÷ (s1 + s2) ATQ, 36 = (2 X 45 X x) ÷ (45 + x) 36 = 90x ÷ (45 + x) Or, 90x = 1620 + 36x Or, 54x = 1620 So, x = 1620/54 = 30 So, (x + 19) 1/2 = (49) 1/2 = 7
? + 156 ÷ 3 × 7 = 35% of 400 + (13)2
Find the simplified value of the given expression.
{12.75 × √64 + 13.5 × √(√256)} ÷ 6 + 49.5 ÷ 5.5
(√7225 x √1225)/(√625) = ?
The value of {5 − 5 ÷ (10 − 12) × 8 + 9} × 3 + 5 + 5 × 5 ÷ 5 of 5 is:
(8.6 × 8.6 + 4.8 × 4.8 + 17.2 × 4.8) ÷ (8.62 – 4.82 ) = ? ÷ 19
390/? = √256 + 3.5
Find the simplified value of the given expression:
224 ÷ 4 + 7 X 36 - 8 of 15 + 162 - 300
2/5 of 3/4 of 7/9 of 7200 = ?
√? + √1296 + √729 = 464/4