Question
AirAsia covered the distance between destination II and
III at the speed of 94 km/hr and that between destination III and IV at the speed of 54 km/hr. what is its average speed of this journey? In the following table eight destinations - I, II, III, IV, V, VI, VII and VIII - have been given. A car crosses all the destinations if it starts from destination I to destination VIII. Question mark (?) in the table show the missing figures. Study the table carefully and answer the following given questions.Solution
Time taken between destinations II and III = `376/94` = 4 hours Time taken between destinations III and IV = `324/54` = 6 hours
Average speed = total distance / total time = `(376+324)/(4+6)` = 70 km/h
Find the simplified value of the following expression:
[{12 + (13 × 4 ÷ 2 ÷ 2) × 5 – 8} + 13 of 8]
What should come in place of (?) question mark in the given expression.
65% of 460 − (3/4 of 160) = ?
- What will come in the place of question mark (?) in the given expression?
(40 ÷ 5 + 56 ÷ 8) X (? - 42) = 120 Evaluate:
√729 + √49 - √16 + 1/√64
What will come in the place of question mark (?) in the given expression?
{180 + (2250/15)} ÷ 11 = ?2 + 14
(1/8) × (256 × 2)/(8 × 4) + ?3 = 1730
((67)32 × (67)-18 / ? = (67)⁸
242 + 18 × 8 – ? = 356
If a nine-digit number 389x6378y is divisible by 72, then the value of √(6x + 7y) will be∶
25% of 250 + 32% of 200 = ? ÷ √ 16