Question : An inkjet printer can print 8 lines/second and can print a document in 6 minutes. How much time would an LED printer take to print the same document if it can print 7 lines/second more than the inkjet printer?
Option 1: 2 min 54 sec
Option 2: 2 min 50 sec
Option 3: 3 min 12 sec
Option 4: 3 min 4 sec
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Correct Answer: 3 min 12 sec
Solution : Given, An inkjet printer can print 8 lines/second and can print a document in 6 minutes. An LED printer can print 7 lines/second more than an inkjet printer. We know, Work done = rate × time ⇒ Number of lines in the document = 8 × 6 × 60 = 2880 ⇒ Time taken for LED printer = $\frac{2880}{15}$ = 192 sec = 3 min 12 sec Hence, the correct answer is 3 min 12 sec.
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Question : Directions: How many 8 are followed by an even number and preceded by an odd number? 1 8 4 3 8 1 4 8 3 2 8 7 8 4 8 5 6 8 7 8 4 1 8 6
Option 1: 3
Option 2: 4
Option 3: 9
Option 4: 5
Question : If p : q : r = 2 : 5 : 3 and r : s = 6 : 5, then what is the value of p : q : r : s?
Option 1: 4 : 12 : 7 : 3
Option 2: 4 : 10 : 6 : 5
Option 3: 6 : 5 : 8 : 10
Option 4: 8 : 12 : 7 : 8
Question : What will be the HCF of 54 and 48?
Option 1: 4
Option 2: 7
Option 3: 6
Option 4: 8
Question : The value of $\frac{2}{3} \times \frac{6}{5} \times \frac{10}{4}+\frac{1}{8}-\frac{3}{8}$ is:
Option 1: $\frac{4}{3}$
Option 2: $\frac{3}{4}$
Option 3: $\frac{4}{7}$
Option 4: $\frac{7}{4}$
Question : Directions: After interchanging which two numbers, the value of the given equation will be 20. 8 × 2 + 6 ÷ 3 – 7
Option 1: 6 and 7
Option 2: 8 and 7
Option 3: 2 and 6
Option 4: 2 and 3
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