How to Pronounce LAMB

An echo repeats four syllables. Find the distance of the reflecting surface, if it takes one-fifth of a second to pronounce or hear one syllable distinctly. (Velocity of sound =340 m//s ).

If E = 5 and HOTEL = 12 how will you code LAMB ?

Which one shows most pronounced inert pair effect ?

Which of the following age group, the children's ability to pronounce the letter w, b, t, f, g, n perfectly grows?