TCS Company

Evaluate the expression
M (373, 7) + R (5.8) + T (7.7) - R (3.4) where M stands for modulo arithmetic, R stands for Round-off operation and T stands for Truncation Operation
(a) 13 (b) 16 (c) 12 (d) 19 (e) 21

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TCS Other Question

Of the four vectors A, B, C, D find out which pair forms an orthogonal set
A = i+j, B = 3i+2j, C = -7i+j, D = 2i-3j
(a)BD (b) AD (c) BC (d) AC (e) AB
Three independent mechanisms A, B and C have been incorporated for fuel saving in a car producing respectively 30%, 20% and 40% efficiency. Assuming that they operate independently, what is the net fuel efficiency achieved?
(a) 61 % (b) 64% (c) 62% (d) 66.4% (e) 69%