# Senseforth Technologies Interview Questions

###### The C.P of 15 books is equal to the S.P of 18 books. Find his gain% or loss%? A. 16.67% loss B. 17.65% loss C. 18.67% loss D. 20.20% loss
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###### Sec²θ-tan²θ = A. 0 B. -0 C. 1 D. -1
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###### The value of √0.16 / 0.4 is ? A. 63 B. 6.3 C. 0.63 D. 663
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###### In a 400 m race, A runs at a speed of 16 m/s. If A gives B a start of 16 m and still beats him by 40 s, What will be the speed of B? A. 5.9 m/s B. 15 m/s C. 8 m/s D. 6 m/s
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###### There are two pipes which are functioning simultaneouly to fill a tank in 12 hours, if one pipe fills the tank 10 hours faster than other then how many hours second pipe will take to fill the tank ? A. 10 hours B. 20 hours C. 30 hours D. 40 hours
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###### If A = {1, 2, 5} and B = {3, 4, 5, 9}, then A ? B is equal to If A = {x: x = 3n, n ? 6, n ? N} and B = {x: x = 9n, n ? 4, n ? N}, then which of the following is false? A. A ? B = {9, 81, 729, 6561} B. A U B = {3, 9, 27, 81,243, 729, 6561} C. A-B = {3, 27,243} (d) A ? D = {3, 27, 243, 6561} D. none of these
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