TCS Company Numerical Ability Ratio and Proportion

1/3 of a number is 6 more than 1/6 of that number then what is the number?

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TCS Other Question

Ferrari S.p.A. is an Italian sports car manufacturer based in Maranello, Italy. Founded by Enzo Ferrari in 1928 as Scuderia Ferrari, the company sponsored drivers and manufactured race cars before moving into production of street - legal vehicles in1947 as Ferrari S.p.A. Throughout its history the company has been noted for its continued participation in racing especially in Formula One where it has enjoyed great success. Rohit once bought a Ferrari. It could go 3 times as fast as Mohit’s old Mercedes. If the speed of Mohit’s Mercedes is 33 km/hr and the distance travelled by the Ferrari is 909 km, find the total time taken in hours for Rohit to drive that distance. In this question A^B means A is raise to the power B.let f(x)=1+x+x^2+x^3+.........+x^6.The reminder when f(x^7) is divided by f(x) is?
(a). 0
(b).6
(c).7
(d).none