$($a$)($i$)$ Calculate Chatru's tax adjusted trading profit for the year ended

$31$ March $2024.(6$ marks$)$

$($ii$)$ Calculate Chatru's income tax and class $4$ national insurance liability

for the tax year $2023-24.(5$ marks$)$

$($b$)$ Advise Chatru and Sandra of two ways in which they may have

reduced their joint income tax liability in the tax year $2023-24.(4$

marks$)$