It has been established that_______(P) Einstein was (Q) a though a great scientist (R) weak in arithmetic (S) right from his school days. Choose the correct sequence?

It has been established that_______(P) Einstein was (Q) a though a great scientist (R) weak in arithmetic (S) right from his school days. Choose the correct sequence?

Explanation

It has been established that 

 although a great scientist, 

 Einstein was 

 weak in arithmetic 

 right from his school days.

so order QPRS