TCS Company Numerical Ability LCM and HCF

2 gears one with 12 teeth and other one with 14 teeth are engaged with each other. One teeth in smaller and one tooth in bigger are marked and initially those 2 marked teeth are in contact with each other. After how many rotations of the smaller gear with the marked teeth in the other gear will again come into contact for the first time?
a) 7
b) 12
c) Data insufficient
d) 84

Read Solution (Total 5)

TCS Other Question

The circumference of the top of the cylinder is 78cm, d-27 cm, h= 53 cm, then what is the distance (in cm) crawled by bug before reaching the honey?
a)119
b) 80
c) 100
d) 89
If A^B means A raised to the power of B, in which of the following choices must P be greater than Q
a) 0.9^P=0.9^Q
b) 0.9^P=0.92^Q
c) 0.9^P>0.9^q