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Let the work ‘M’ = 30 units (LCM of 10 and 6) Efficiency of P = 30/10 = 3 units Efficiency of Q = 30/6 = 5 units Efficiency of P, Q and R = (30 × 8)/10 = 24 units per day Efficiency of R = 24 – (3 + 5) = 16 units per day Time taken by R to finish work ‘N’ = 240/16 = 15 days
Select the correct mirror image of the given figure when the mirror is placed on the right side of the figure.
Select the correct mirror image of the given figure when the mirror is placed at MN as shown below.
Select the correct mirror image of the given figure when the mirror is placed to the right of the figure.
Select the correct mirror image of the given combination when the mirror is placed at line AB as shown.